Update CurrentDateTImeUnitTest.kt

fix test as calendar month values start with 0, and LocalDateTime start with 1

Author: lor6

core-kotlin-modules/core-kotlin-date-time/src/test/kotlin/com/baeldung/currentdatetime/CurrentDateTImeUnitTest.kt

@@ -53,7 +53,7 @@ class CurrentDateTImeUnitTest {
 
         val current = LocalDateTime.of(
             calendar.get(Calendar.YEAR),
-            calendar.get(Calendar.MONTH),
+            calendar.get(Calendar.MONTH + 1),
             calendar.get(Calendar.DAY_OF_MONTH),
             calendar.get(Calendar.HOUR_OF_DAY),
             calendar.get(Calendar.MINUTE),
@@ -72,4 +72,4 @@ class CurrentDateTImeUnitTest {
 
         Assertions.assertThat(current).isNotNull()
     }
-}
+}